GE to Equip VERBUND’S Reisseck Pumped Hydro Storage Power Plant
Pumped Hydro Storage PowerGE

GE to Equip VERBUND’S Reisseck Pumped Hydro Storage Power Plant

GE Renewable Energy has been selected by Austria’s largest electricity producer VERBUND to supply and commission one 45 MW generator for the

GE Renewable Energy has been selected by Austria’s largest electricity producer VERBUND to supply and commission one 45 MW generator for the extension of the Reisseck II Pumped Hydro Storage Power Plant in Carinthia/Austria, located 2300 meters above sea level. The project will be executed by GE Renewable Energy in a consortium with GE Power Conversion, which is supplying frequency converters and an excitation transformer as well as the control unit.

The Reisseck II pumped hydro storage power plant went into operation in 2016 and will be now extended by “Reisseck II+”, an underground cavern power plant. With a capacity of 430MW, Reisseck II is the second largest pumped hydro storage power plant of the Malta/Reisseck power plant group. The expansion will add another45 MW of capacity. After completion of the necessary preparatory work, construction is scheduled to start in the spring of 2021. From 2023, the new pumped storage power plant, in combination with the existing systems, will serve to support the integration of wind and photovoltaic systems in Austria and continue to serve as a supporting pillar for grid security. Pumped hydro storage power plants such as Reisseck II are the most ecologically and economically sensible way of balancing out the highly fluctuating power generation from wind and solar. In total, Reisseck II can store as much power as generated by 200 wind turbines on demand to the grid, thus making optimum use of renewable energy.

Following the Malta Upper Stage facility in 2020, Reisseck II+ will be VERBUND’s second Pumped Hydro Storage power plant featuring GE Hydro Solutions fully-fed variable speed technology. This design allows for immediately available electricity, high flexibility and short response times to load changes. Due to the higher flexibility and predictability, power peaks in the grid can be covered even more efficiently. For a unit, variable speed can increase weighted efficiency in turbine mode by an average of one percent and pumping power adjustment range by 30%.

With the new pumped storage power plant Reisseck II, VERBUND has expanded the Carinthian power plant systems Malta and Reisseck to one of the strongest hydropower plant groups in Europe with a total capacity of 1460 MW. For the extension of Reisseck II, VERBUND will use the two reservoirs “Großer Mühldorfer See” and “Kleiner Mühldorfer See”. Because both reservoirs are very close to each other, the topography of the region is advantageous for the construction of the plant. The small height difference between the upper and lower reservoirs can be better utilized for future energy purposes.

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